Spray a 9 x 9 inch baking dish with Baker's Joy.
Preheat oven to 450˚F. Flip polenta out of dish and cut into 9 squares. Spray baking sheet with Baker's Joy. Arrange polenta squares on baking sheet and bake 15 minutes or until hot and lightly browned.
Preheat oven to 425˚F. Lightly spray baking pan with Baker's Joy. Spread chopped tomatoes evenly on baking pan, and sprinkle with salt and pepper. Roast 30 to 40 minutes or until tomatoes are very soft and beginning to brown.
Timesaving Tip: Buy prepared polenta logs, slice into circles and bake as above. Serve bruschetta over polenta circles.